* public class CustomPackagingProvider implements PackagingProvider {
 *     public Collection<Packaging> provides() {
 *         return Arrays.asList(
 *             packaging("docker-image"),
 *             packaging("flatpak")
 *         );
 *     }
 * }
 * </pre>
 *
 * @see org.apache.maven.api.Packaging
 * @see org.apache.maven.api.spi.ExtensibleEnumProvider
 * @since 4.0.0
 */
@Experimental
@Consumer
@Named

        }

        // second step get parameter names of all plugin goals
        Set<String> parametersNamesAll = mojoDescriptor.getPluginDescriptor().getMojos().stream()
                .flatMap(m -> m.getParameters().stream())
                .flatMap(this::getParameterNames)
                .collect(Collectors.toSet());

        unknownParameters = getUnknownParameters(mojoExecution, parametersNamesAll);

        .expect("A", "B", "C", "D", "E");
  }

  public void testFlatMap() {
    SpliteratorTester.of(
            () ->
                CollectSpliterators.flatMap(
                    Arrays.spliterator(new String[] {"abc", "", "de", "f", "g", ""}),
                    (String str) -> charactersOf(str).spliterator(),

                                                .flatMap(dm -> dm.child(DEPENDENCIES))
                                                .orElse(null),
                                        DEPENDENCY_MANAGEMENT))
                        .filter(container -> container.element != null),
                // Profile dependencies
                root.child(PROFILES).stream()
                        .flatMap(profiles -> profiles.children(PROFILE))

    }

    @Override
    @Nonnull
    public List<Profile> getEffectiveProfiles() {
        return Stream.iterate(this.project, Objects::nonNull, MavenProject::getParent)
                .flatMap(project -> project.getModel().getDelegate().getProfiles().stream())
                .toList();
    }

    @Override
    @Nonnull
    public List<Profile> getDeclaredActiveProfiles() {

            String defaulModelId = DefaultLifecycleRegistry.DEFAULT_LIFECYCLE_MODELID;
            List<String> unversionedPlugins = buildPlan
                    .allSteps()
                    .flatMap(step -> step.mojos.values().stream().flatMap(map -> map.values().stream()))
                    .map(MojoExecution::getPlugin)
                    .filter(p -> p.getLocation("version") != null

@NullUnmarked
public class ImmutableBiMapFloodingTest extends AbstractHashFloodingTest<BiMap<Object, Object>> {
  public ImmutableBiMapFloodingTest() {
    super(
        EnumSet.allOf(ConstructionPathway.class).stream()
            .flatMap(
                path ->
                    Stream.<Construction<BiMap<Object, Object>>>of(
                        keys ->
                            path.create(transform(keys, key -> immutableEntry(key, new Object()))),

        }

        // Check profiles for dependencyManagement
        boolean profileChanges = root.child(PROFILES).stream()
                .flatMap(profiles -> profiles.children(PROFILE))
                .map(profile -> profile.child(DEPENDENCY_MANAGEMENT)
                        .flatMap(dm -> dm.child(DEPENDENCIES))
                        .map(deps -> removeManagedDependenciesFromSection(

   * iterator supports it.
   *
   * <p><b>{@code Stream} equivalent:</b> to concatenate an arbitrary number of streams, use {@code
   * Stream.of(stream1, stream2, ...).flatMap(s -> s)}. If the sources are iterables, use {@code
   * Stream.of(iter1, iter2, ...).flatMap(Streams::stream)}.
   *
   * @throws NullPointerException if any of the provided iterables is {@code null}
   * @since 20.0
   */
  @SafeVarargs

     *
     * @return a stream containing this node and its descendants
     */
    @Nonnull
    default Stream<Node> stream() {
        return Stream.concat(Stream.of(this), getChildren().stream().flatMap(Node::stream));
    }